There were no deaths or injuries from the tornadoes of April 11, 2012. Both of the tornadoes in Texas on that date were rated EF0 and such tornadoes hardly ever kill.
Nobody in Texas was killed in any tornadoes in 2011. As of September of 2012 the last tornado related death in Texas was in 2007.
From 1950-2012, for which official records are available, Texas experienced 8,117 recorded tornadoes. The overall number is likely higher, as prior to the 1990s many of the minor tornadoes were missed.
It is impossible to say for certain, as official records only extend back to 1950, and up until the early 1990s many of the weaker tornadoes that no doubt ocurred were never recorded. That said, from 1950 until 2012 there have been 8,117 tornadoes recorded in Texas.
There were 103 tornadoes in Texas in 2011.
Texas had 129 tornadoes in 2009.
There were 129 tornadoes in Texas in 2009.
There were 120 tornadoes in Texas in 2008.
There were 107 confirmed tornadoes in Texas in 2010.
There were 152 confirmed tornadoes in Texas in 1980.
Texas had 198 confirmed tornadoes in 2007.
There were 178 tornadoes in Texas in 2004.